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gofzf.go
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/
gofzf.go
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package gofzf
import (
"fmt"
"io"
"os"
"os/exec"
"strings"
)
// Select takes a slice of strings and returns a single string
// chosen by the user using fzf. It's strongly recommended to trim spaces
// of strings in input.
func Select(input []string) (string, error) {
var fzfInput strings.Builder
for _, v := range input {
fzfInput.WriteString(fmt.Sprintf("%s\n", v))
}
cmd := exec.Command("fzf")
var result strings.Builder
cmd.Stdout = &result
cmd.Stderr = os.Stderr
stdin, err := cmd.StdinPipe()
if err != nil {
return "", err
}
_, err = io.Copy(stdin, strings.NewReader(fzfInput.String()))
if err != nil {
return "", err
}
err = stdin.Close()
if err != nil {
return "", err
}
err = cmd.Start()
if err != nil {
return "", err
}
err = cmd.Wait()
if err != nil {
return "", err
}
return strings.TrimSpace(result.String()), nil
}